Isa Y Mate

Páginas: 2 (260 palabras) Publicado: 28 de febrero de 2013
THE PHONE
The phone is a telecommunications device designed to transmit acoustic signals through electrical signals remotely.
Typically, a cell comprises twocircuits: a speech circuit that handles voice and dialing circuit, connected to the call dialing and
INVENTOR
Around the year 1857 Antonio Meucci constructed toconnect your phone to your bedroom office, located on the second floor, due to rheumatism of esposa.1 however lacked the money to patent his invention, so he presented toa company (Western Union, who promoted the "invention" of Graham Bell) who ignored him, but that neither the materials returned.
In 1876, after discovering that totransmit human voice could only use a direct current, the nationalized Scottish inventor in U.S. Alexander Graham Bell, built and patented a few hours before hiscompatriot Elisha Gray's first phone capable of transmitting and receiving human voice in all its quality and timbre. Nor should sideline Thomas Alva Edison, whointroduced major improvements in the system, including the microphone is carbon granules.
On June 11, 2002 the U.S. Congress passed resolution 269, which recognized thatthe inventor of the telephone was Antonio Meucci and Alexander Graham Bell. The resolution, adopted unanimously, U.S. officials estimate that "the life and work ofAntonio Meucci should be recognized legally, and that his work in the invention of the telephone should be admitted." According to the text of this resolution,Antonio Meucci installed a rudimentary telecommunications device from the basement of his home in Staten Island (New York) and his wife's room, on the first floor.
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